Reference no: EM132885988
1. List and briefly define categories of security services.
2. List and briefly define categories of security mechanisms
3. Using this Playfair matrix encrypt this message: "Authority without responsibility is an empty vessel."
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4. Encrypt the message "meet me at the usual place at ten rather than eight o'clock" using the Hill cipher. Show your calculations and the result.
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5. For a user workstation in a typical business environment, list potential locations for confidentiality attacks.
6. What is the difference between link and end-to-end encryption?
7. List ways in which secret keys can be distributed to two communicating parties.
8. What is the difference between a session key and a master key?
9. What are the roles of the public and private key?
10. What requirements must a public key cryptosystem fulfill to be a secure algorithm?
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